The Core2 Q6600 is a damn good chip, if you're getting a nice price (I don't do stuff in kroner

). Also, the GTS
is not that much faster than the 8800GT 512, and the GT is a lot cheaper here, so I would go for that if that's also the case in Denmark. I didn't see any RAM specs, but know that XP and Vista 32-bit can't handle anything above 2 GB (I have 2 GB).
Any nForce chipset will probably contain 4 RAM slots, so it's easy to upgrade though, if 64-bit is the future. Before you make your final buy, I would stil read a few reviews from TomsHardware etc. where they pit different processors and graphics cards against each other, and then come to a conclusion based on price and quality. For example, it's possible that an AMD Phenom now outclasses the Q6600 because of a better price/quality ratio, because AMD has had to lower it's prices just to stay competitive. Although, Intel has been making some really top notch stuff, so I just don't know.
A new computer will probably stay with you for a while, so don't rush the desicion, learn all about the parts you can and don't overinvest, that money could also be used for better purposes (a savings account). I have an AMD 5600+ with a geforce 8600GT, it runs Far Cry on Ultra @ 1680 * 1050 (I have a 22" screen). Everything starts up before I can blink my eye (except for windows itself

).
Anyway, it's your decision, go for it and have lots of fun with that thing
